The guns have fallen silent—at least for now—along the volatile Afghanistan-Pakistan border after a series of deadly clashes between Taliban fighters and Pakistani forces. The fragile ceasefire holding this uneasy calm together conceals a far deeper fracture: the unravelling of Pakistan’s decades-old doctrine of “strategic depth.” What was once the cornerstone of Islamabad’s regional vision—a plan to control Kabul through militant proxies and use Afghanistan as a buffer against India—has collapsed into blowback, betrayal, and diminishing influence. The frontier that Pakistan sought to dominate has turned into a front of confrontation. For New Delhi, however, this upheaval marks not just a shift in regional dynamics but a potential opening to recalibrate its Afghan policy and shape a new form of strategic depth grounded in partnership rather than proxy. For nearly four decades, Pakistan’s security establishment viewed Afghanistan not as a neighbour but as an extension of its strategic geography. Since the Afghan-Soviet war of the 1980s, Islamabad’s military and intelligence apparatus, particularly the Inter-Services Intelligence (ISI), cultivated deep ties with Islamist factions that later coalesced into the Taliban. The objective was simple yet audacious: ensure that any regime in Kabul remained friendly—or at least pliable—to Pakistani interests, thereby creating a buffer in case of future conflict with India.
Through the 1990s, this policy bore fruit as Pakistan became the principal backer of the Taliban regime, offering funding, training, and safe havens. Militant outfits such as Lashkar-e-Taiba and Jaish-e-Mohammad used Afghan soil to stage attacks on Indian interests, turning cities like Khost and Kandahar into jihadist crossroads. Even after the U.S.-led invasion toppled the Taliban in 2001, Pakistan maintained its influence through the Haqqani network, a semi-autonomous group rooted in North Waziristan that functioned as Islamabad’s “insurance policy” in Afghan affairs.This dual game—allying with Washington in the War on Terror while covertly sustaining the very networks it was meant to dismantle—gave Pakistan tactical advantages. It secured billions in aid from the United States while retaining the means to exert pressure on Indian interests in Afghanistan. Between 2008 and 2011, the Haqqani network orchestrated high-profile attacks on Indian diplomatic missions, forcing New Delhi to scale back its development footprint.
To Islamabad’s strategists, this was a vindication of the strategic depth doctrine: Afghanistan remained a pliable frontier that could be used to counter India without confrontation. But the edifice began to crumble. The policy of duplicity bred its own nemesis. The tribal belt that sheltered Taliban and Al-Qaeda elements soon spawned the Tehreek-e-Taliban Pakistan (TTP)—an insurgency that turned its guns inward. Pakistan’s military campaigns in the Federally Administered Tribal Areas (FATA) became endless cycles of appeasement and retaliation. The 2004 Shakai Agreement with militant commander Nek Mohammad collapsed within months. When the CIA eliminated him in the first drone strike on Pakistani soil, it symbolised not triumph but the beginning of Islamabad’s loss of control. Over time, the TTP morphed into a lethal domestic force, waging a brutal campaign against the Pakistani state. The re-emergence of the Afghan Taliban in 2021, after two decades of U.S. occupation, initially seemed like a strategic victory for Islamabad.
Celebrations rang out in Rawalpindi; officials spoke of “historic depth restored.” Yet, the Taliban that returned to Kabul were not the same subservient clients of the 1990s. Hardened by years of war and craving international legitimacy, the new leadership rejected Pakistan’s tutelage. When Islamabad demanded that Kabul curb the TTP’s cross-border activities, the Taliban refused. Instead, they invoked Afghan sovereignty, dismissing Pakistan’s pleas as interference. By 2024, these tensions had erupted into direct armed clashes along the Durand Line. Pakistani airstrikes on Afghan territory were met with retaliatory fire. The TTP, emboldened by Taliban tolerance, resumed attacks inside Khyber Pakhtunkhwa and Balochistan. Pakistan’s last reliable link—the Haqqani faction—fractured as Sirajuddin Haqqani clashed with Taliban supreme leader Hibatullah Akhundzada over ideology and control. With Haqqani’s influence waning, Islamabad’s leverage vanished.
This inversion of roles—the patron turned pariah, the client turned challenger—marks one of the most dramatic reversals in South Asia’s modern geopolitics. The concept of “strategic depth” now stands exposed as a strategic delusion. What was intended to give Pakistan breathing space in a future conflict with India has instead suffocated its security apparatus. The frontier Islamabad once sought to use as a launchpad has become a source of perpetual instability.
The blowback has been both ideological and territorial. From the early 2000s onward, Pakistan’s tribal regions became the epicentre of a transnational jihadist movement. Al-Qaeda, Uzbek fighters, and radical clerics like Maulana Fazlullah transformed local grievances into a global narrative of holy war. Extremist radio stations in Swat preached Sharia rule, and assassination attempts on General Pervez Musharraf underscored how deeply the state’s own Frankenstein had infiltrated its ranks. The military’s heavy-handed operations displaced millions, but failed to eliminate the insurgency. The TTP, fractured but resilient, survived by merging tribal revenge with religious zeal. Each failed peace deal—from Swat in 2009 to North Waziristan in 2014—only reinforced the militants’ perception that the state could be bled into submission.
By the time Osama bin Laden was discovered and killed in Abbottabad in 2011, Washington’s trust in Pakistan had evaporated. Intelligence cooperation collapsed, U.S. aid dwindled, and Pakistan found itself fighting an unwinnable internal war with limited resources and diminishing legitimacy. When the Taliban returned to power a decade later, Islamabad saw a fleeting opportunity to restore lost leverage. It facilitated limited U.S. drone operations, including the strike that killed Al-Qaeda chief Ayman al-Zawahiri in Kabul. Yet, these tactical alignments could not conceal the deeper strategic decay. The Taliban’s defiance, the TTP’s resurgence, and growing international isolation have cornered Pakistan into an unenviable position: a state trapped between hostile forces on both sides of its western border and an unresolved crisis of extremism within.Amid this chaos, New Delhi finds itself presented with a historic opportunity. For years, India’s Afghanistan policy has been guided by cautious idealism—prioritising development aid, cultural diplomacy, and people-to-people ties while avoiding direct engagement with the Taliban. This approach earned India goodwill among Afghans but limited strategic reach. The evolving situation calls for recalibration. Reopening its technical mission in Kabul and cautiously engaging with the Taliban regime signals a quiet but deliberate shift. India is not seeking to legitimize the Taliban but to ensure a presence on the ground—an ear to the street, a hand in humanitarian projects, and eyes on the evolving security landscape. The way forward for India lies in combining soft power with strategic intent. By expanding connectivity projects to link Central Asia through Chabahar and beyond, deepening coordination with Iran, Tajikistan, and Uzbekistan, and offering technological and educational support to Afghans, India can gradually build influence rooted in partnership. Equally, the revival of a “double-front” strategic framework—engaging Pakistan on both its eastern and western peripheries—could recalibrate regional power equations.
For Islamabad, managing unrest in the west while facing diplomatic assertiveness from the east would stretch resources and reduce maneuverability. The silence now hovering over the Af-Pak border is deceptive. Beneath it lies a region seething with unresolved histories and shifting ambitions. Pakistan’s old playbook—of nurturing militancy for influence—has run its course. The Taliban’s assertion of independence, the TTP’s unrelenting insurgency, and the erosion of Pakistan’s moral and strategic capital have left the doctrine of “strategic depth” in ruins.
For India, the moment demands vision and patience—a recognition that influence need not come from control, but from credibility and consistency. The frontier that once symbolized Pakistan’s dominance has become its most volatile liability. As the balance of power reshapes itself, Afghanistan—long seen as Pakistan’s backyard—could well become the front yard of India’s diplomacy and imagination. The question is not whether the guns will roar again, but whether New Delhi will be ready when they do—armed not with weapons, but with foresight, presence, and purpose.
Abhinav is an advocate & Columnist. Srijan is a national security analyst